Battery pack cell short circuit
â–¶ How to fix
* If it happens one or two times between interval, reset DTC. * Check for a primary error in TMS or IBU that could affect this one. * If DTC is not active, perform a test drive with intensive acceleration up to 50-60km/h and back to stop. Perform this test few times. * Read out SOH of the battery pack. * Change battery pack according to instruction and in collaboration with vehicle owner and R&D center.
What you'll see
No driver-visible symptom recorded.
System reaction
• "Therman Incident Warning" on the instrument cluster, vehicle should be evacuated. • Emergency contactor open • Inhibit contactor close
Diagnostic depth
Detection
Critically low voltage (< 1V)
Possible cause
• Cells are defective or worn out • Deep cell discharge • CMC fault • Disturbed measurements